Also found in: Thesaurus, Medical, Legal, Idioms, Encyclopedia.
1. A dense black coal that takes a high polish and is used for jewelry.
2. A deep black.
1. Made of or resembling a dense, black, highly polished coal.
2. Black as coal; jet-black: jet hair.
[Middle English, from Anglo-Norman geet, from Latin gagātēs, from Greek, after Gagas, a town of Lycia.]
a. A high-velocity fluid stream forced under pressure out of a small-diameter opening or nozzle.
b. An outlet, such as a nozzle, used for emitting such a stream.
c. Something emitted in or as if in a high-velocity fluid stream: "such myriad and such vivid jets of images" (Henry Roth).
a. A jet-propelled vehicle, especially a jet-propelled aircraft.
b. A jet engine.
v. jet·ted, jet·ting, jets
1. To travel by jet aircraft: jetted from Houston to Los Angeles.
2. To move very quickly.
To propel outward or squirt, as under pressure: "Any man might ... hang around ... jetting tobacco juice" (Ross Lockridge, Jr.).